Printer&#39;s quoin



DUNCANSON, JR. 1

PRINTERS ouom. APPLICATION FILED APR. 27, 1920.

1,375,495. Patented Apr. 19, 1921'. r

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Afro/Mrs rmnrnns err om.

7 To all whom it may concern:

Be it known that I, GEORGE DUNCANSON, Jr., a citizen of the UnitedStates, and a resident of Jersey City, in the county of Hudson and Stateof New Jersey; have invented a new and Improved Printers Quoin, of whichthe following is a full, clear, and exact description.

The present invention relates to new and useful improvements in printersfurniture, and it pertains more particularly to devices of thischaracter known as printers quoins.

It is one of the primary objects of the present invention to soconstruct a printers quoin that the two members constituting the quoinwill be positively guided. in their movements relatively to each otherduring the operation thereof,

It is a further object of the invention to provide means for maintainingthe two members against relative movement when they have been set inoperative position.

It is a still further object of the invention to obtain the heretoforementioned advantages in printers quoins without altering theconstruction of the engaging surfaces of the two members serving to makeup a quoin, thus rendering them capable of use with chases or frames ofordinary construction.

With the above and other objects in view, reference is had to theaccompanying drawings, in which- Figure 1 is a plan view partly brokenaway of a device constructed in accordance with the present invention;

Fig. 2 is a side elevation, partly in section, of the device in itsclosed position;

Fig. 3 is a similar view of the device in its open position, and

Fig. 4 is a vertical sectional view taken on the line 4-4 of Fig. 3.

Referring more particularly to the drawings, the device comprises twoblocks 5 and 6, and each of these blocks 5 and 6 is provided with anangularly disposed face 7 and a straight face 8.

Secured to the block 6 on its angularly disposed face 7, by means of apin 9, is a stationary guide 9, one end of which is notched as at 10, toreceive the stationary guide 9 to maintain the blocks in proper relationto each other. The block 6 is provided on one end with a cut-out portion11, and extending transversely of the cut-out portion 11 and spaced fromthe lower wall 12 thereof, is a pin 13, This pin also servesSpecification of Letters Patent;

Patented Apr. 19, 1921.

Application filed April 27, 1920, s mu No. 377,056.

to retain the blocks 5 and G'together in such a manner as to provide asingle unit quoin.

The block 5 is provided with a bar 14, which is spaced from itsangularly disposed face 7 by means of a spacing block or the like 15,and said bar 14 is secured to the block 5 by means of threaded bolts orpins 14. This spacing block 15 is so positioned with respect to theblock 5 as to maintain the bar 14 in parallelism with the angular wallor face 7 of said block, it being understood that the opposite end 16 ofsaid block is notched as at 17, to receive the bar 14. This bar 14 isprovided throughout the major portion of its length with a plurality ofspaced notches adapted for engagement with the pin 13 to preventrelative movement of the blocks 5 and 6 under ordinary operatingconditions.

To provide for the movement of the blocks 5 and 6 relative to each otherin the operation of the quoin, these blocks are provided with notches 20in their angular faces, and said notches 20 are adapted to be engaged bymeans of a key or wrench as in the ordinary manner. It has been found,however, that in these devices it is advantageous to provide areinforcement for blocks, and therefore the notches have been filled inthroughout a portion of their length with lead or other suitablereinforcing composition 21. This reinforcing material may also be formedas an integral part of the blocks, if desired.

From the foregoing description, it will be apparent that when the quoinsare positioned between the chase and the type and are moved with respectto each other to lock the type in the chase or frame, the pin 13 willengage one of the notches 18, and the relative position of this pin tothe notches 18 will prevent the slipping of the blocks 5 and 6relatively to each other under ordinary conditions. Such a constructiongreatly enhances the qualities of devices of this character over thecommon type in which the frictional contact of the angular surfaces onewith the other and the frictional contact of the straight surfaces withthe walls of the chase or frame are relied upon to retain the blocks ofthe quoin against relative movement one to the other.

Having thus described the invention, what is claimed is:

1. A prlnters quoln comprising two members having angular faces inslidmg contact with each other, a pair of spaced lugs ried by one ofsaid members,'a spaced bar formed on one of the members, a spacedcarried by the other of said members and bar carried by the other ofsaid members PFOVidGdJWith a'plurality .ofnotches, and a and adapted totravel between the spaced transversely-extending pin mounted in the 5lugs to form guiding means, and a translugs and adapted for engagementwith the 15 versely-extending pin overlying the spaced notches in saidspaced bar, said pin serving bar wherebyrelativeomovement ofuthem'em-'to prevent relative movement of the Inem hers is prevented. bers in alldirections.

2. A printers quoin comprising two mem- V i 10. hers having angularfaces, spaced lugs car- GEORGE DUNCANSON, JR. 7

